# Use ATE Device ID 

> [HTML Version](useatedeviceid.htm)

_New October 2024_

The **-devate** switch (UNIX only) causes A-Shell to use the ATE machine:## identifier (if available) for the unique session device ID, instead of the normal dev:pid (e.g. "pty/1:3424") format.

**History**

2024 October, A-Shell 7.0.1754: Switch added to A-Shell